发明名称 MICROPHONE
摘要 PURPOSE:To easily control a main body equipment by a microphone without approaching the main body equipment by providing a main body control function at the microphone. CONSTITUTION:A voice signal outputted from an acoustic conversion element 31 in a microphone 3 is amplified by a voice amplifier 4, transmitted to a main body 2, amplified, and outputted from a speaker 1. A signal from a reproducing head 8 is successively amplified by a playback/amplifier 9 and a main amplifier 5, and outputted from the speaker 1. Then, a microprocessor 7 detects the change of a, resistance value accompanied with the operation of a switch 6 fixed to the microphone 3, as a voltage value, discriminates an operation item, transmits the control signal of an increase and decrease to a mix volume 10 and a main volume 11 according to the discriminated item, and controls a mixing amount and a voice. In the same way, the microprocessor 7 transmits the control signal to a key control 12 and a tape feeding motor 13 according to the discriminated operation item, and controls a key control and the reproducing speed of a tape.
申请公布号 JPH0622386(A) 申请公布日期 1994.01.28
申请号 JP19920176507 申请日期 1992.07.03
申请人 HITACHI LTD;HITACHI GAZOU JOHO SYST:KK 发明人 SANPEI YOSHI
分类号 H04R1/04;G10K15/04 主分类号 H04R1/04
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